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Tag: linux

If not exists, create a folder – Error in makefile

I searched over the internet for a command to create a folder if it doesn’t exist. I found it and put in my makefile When the folder doesn’t exist it’s created correctly. But I get an error if the folder already exists. I don’t get why the command would give an error if the condition […

how to move Files to a folder using mv in bash with condotions?

I was writing this code to organize my downloads folder so it wouldn’t be messy. i want the files to be moved to their proper folder like for mp4 it should go to the Videos folder. but the code is not working I guess it’s from ‘if’ statement but i don’t know how to fix it because…

Scheduling multiple tasklets in linux

I am new to tasklets in Linux. Here I am scheduling 3 tasklets in ISR. But what I observed is that only one tasklet in executed. fill_buf is tasklet_struct and Linux version is 5.10.63. Answer You are scheduling the same tasklet three times in a row, but a tasklet can only be scheduled again if it has already…

Error while building docker image on ARM64

I wrote this Dockerfile for an os and while running sudo docker build buildenv -t testos-buildenv on the terminal i got this log Sending build context to Docker daemon 2.048kB Step 1/9 : FROM randomdude/gcc-cross-x86_64-elf —> c7e17c42eb04 Step 2/9 : RUN apt-get update —> [Warning] The reque…

echo printing working directory files names for no reason

why echo printing the files names ? gives this output but running pacmd list-sinks | grep “index:” in the shell gives * index: 1 index: 2 index: 3 Answer pacmd returns * pattern. In for … in …; do … done loop, the list pattern contains * without any protection. So, bash replace *…